When the breathing simulation system of the torso sex doll is activated, the chest rise and fall error is only 0.2mm. This surreal experience is blurring the boundaries of life cognition. A high school biology teacher found that students who have been exposed to sex doll heads are more inclined to explain human functions with mechanics, simplifying the heartbeat to the operation of a hydraulic pump. This cognitive alienation may weaken the awe and understanding of the essence of life.